BEHAVIOR OF COMPOSITE BRIDGE DECKS AND CONNECTIONS UNDER FATIGUE LOADING

This report presents a summary of an extensive experimental and analytical research study on the design and behavior of a composite bridge deck. Static and fatigue type experimental studies were performed on the deck structure and possible connections to the superstructure. The applied loads were modelled after the standard AASHTO truck (HS20-44) and the Alternate Military loading. The primary conclusions from the research study include the following: a) The optimum composite bridge deck consists of an x-shaped monocoque type of a structural system which transfers wheel loads to the girders of the superstructure by stress type forces; b) Glass type reinforcement and polyester matrix are the most feasible materials for the composite deck based on economic, structural and manufacturing considerations; c) The acoustic emissions technique has proven to be a valuable non-destructive testing method for evaluating the critical loads and fatigue cycle limits; d) The longitudinal joints for the composite deck will require support girders to avoid excessive stresses and deflections; e) The transverse joints for the composite deck may be fabricated with inserts; such inserts allow for adequate shear transfer and also satisfy deflection limits required by AASHTO.

  • Corporate Authors:

    California State University, Long Beach

    College of Engineering, 1250 Bellflower Boulevard
    Long Beach, CA  United States  90840

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Plecnik, J M
  • Publication Date: 1991-9

Media Info

  • Pagination: 198 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00622397
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWACSULB SL 91-9-10
  • Files: TRIS, USDOT
  • Created Date: May 31 1992 12:00AM